基于扩展Kalman滤波的声阵列定位数据融合算法

利用各阵元和目标相对于一中心阵元的几何关系建立目标运动方程，坐标变换方程和声阵列测量方程，并以此建立了声阵列目标定位模型。在此基础上提出了基于扩展Kalman滤波算法的目标定位数据融合算法。通过地面目标和空中目标的计算机仿真表明，本算法能够有效地克服由于智能雷布阵的随机性给智能雷定位数据估计带来的困难，对声阵列定位数据也能进行较好的融合，对提高定位精度有一定效果。     

BP自适应网络在数值预报产品的释用

提出了动态指标库的概念，即不同时次采取不同的指标库，同时次在网络自适应时采取不断更新指标库的阈值，采取先建立消空指标库对样本进行消空，提高了降水样本在整体样本中的概率，然后利用BP(Back Propagation)网络作了大连短期的12h和24h降水有、无的预报，设计了网络的自适应算法，并在降水有、无预报中加以应用。结果表明，此方法比没有做消空样本和网络自适应的降水TS评分有所提高，在数值产品解释应用中更具有实际意义。     

一种薄壁矩形管弯曲胎具的设计

介绍了一种薄壁矩形管弯曲胎具。利用金属材料弯曲变形时的塑变硬化特性来弯曲矩形管,较好地解决了雨阳棚骨架现场弯曲加工的问题。     

Computer Data Processing of the Hydrogen Peroxide Decomposition Reaction

Two methods of computer data processing, linear fitting and nonlinear fitting, are applied to compute the rate constant for hydrogen peroxide decomposition reaction. The results indicate that not only the new methods work with no necessity to measure the final oxygen volume, but also the fitting errors decrease evidently.     

Ordinary Toxicity of Chlorine Dioxide and By-products Chlorite and Chlorate in Water

Acute toxicity and accumulated toxicity of chlorine dioxide (ClO2) and by-products chlorite (ClO2-) and chlorate (ClO3-) in water acted on mice are studied by the method of Horn and accumulation coefficient. Subchronic toxicity of the mixture of ClO2 and ClO2-and ClO3- in water acted on rat is studied though feeding test for 90 days, including statistical analysis of variance on weight gaining, food utilization efficiency,index of blood and serum,liver (or kidney) to body weight ratio, and histopathological examination on liver and kidney. The results show that aqueous solution of ClO2, NaClO2 and NaClO3 ( with the concentration of 276.5 mg/L, 200 mg/L and 200 mg/L respectively) and the mixed aqueous solution of ClO2 with the concentration of 553 mg/L are actually non-poisonous , and non-cumulative aqueous solution as well.     

Classification of Medical Brain Images

Since brain tumors endanger people‘s living quality and even their lives, the accuracy of classification becomes more important. Conventional classifying techniques are used to deal with thosedatasets with characters and numbers. It is difficult, however, to apply them to datasets that include brain images and medical history (alphanumeric data), especially to guarantee the accuracy.For these datasets, this paper combines the knowledge of medical field and improves the traditional decision tree. The new classification algorithm with the direction of the medical knowledge not only adds the interaction with the doctors, but also enhances the quality of classification. The algorithm has been used on real brain CT images and a precious rule has been gained from the experiments. This oaoer shows that the ahzorithm works well for real CT data.     

体育教学与德育渗透的思考与实践

体育教学中渗透着丰富的德育内容，对于学生人格的培养、世界观的形成具有积极的作用。在体育教学中，根据学生的特点，有意识地渗透德育内容，进行生动活泼的思想道德教育，取得了良好效果。     

回转式空气预热器改造技术的探讨

为解决电厂锅炉空气预热器漏风率过高的问题，提出了新的空气预热器改造方案，其技术关键是通过安装新的扇形板和轴向密封板，形成双密封；在转子轴的密封中增加迷宫密封等方法，使漏风率由30％下降到9％，保证了锅炉正常运行及运行的经济性。     

[(n-C4H9)2Sn(2-PyCO2)2(H2O)] 的合成、晶体结构

利用三丁基氯化锡和2-吡啶甲酸在三乙胺存在下以1:1摩尔比反应,合成了非预期有机锡配合物[(n-C4H9)2Sn(2-PyCO2)2(H2O)].通过元素分析、红外光谱、核磁共振氢谱和X-射线单晶衍射对其结构进行了表征.测试结果表明,该配合物为单体结构,锡原子呈七配位畸变五角双锥构型.通过配位水分子和游离羰基氧原子的氢键作用,形成了二维网状结构.     

Disaster Reduction Decision Support System Against Debris Flows and Landslides Along Highway in Mountainous Area

Highways in mountainous areas are easy to be damaged by such natural disasters as debris flows and landslides and disaster reduction decision support system (DRDSS) is one of the important means to mitigate these disasters. Guided by the theories and technologies of debris flow and landslide reduction and supported by geographical information system (GIS), remote sensing and database techniques, a DRDSS against debris flow and landslide along highways in mountainous areas has been established on the basis of such principles as pertinence, systematicness, effectiveness, easy to use, open and expandability. The system consists of database, disaster analysis models and decisions on reduction of debris flows and landslides, mainly functioning to zone disaster dangerous degree, analyze debris flow activity,simulate debris flow deposition and diffusion, analyze landslide stability, select optimal highway renovation scheme and plan disaster prevention and control ergineering. This system has been applied successfully to the debris flow and landslide treatment works along Palongzangbu Section of Sichuan-Tibet Highway.